Anyone ever use Cajun trinity ( like mirepoix but celery onion and peppers) in their chili? I did a batch sort of like that last weekend, used a couple jalapeños in the trinity and added a couple blistered poblanos into the pot. Also heard one of my dinner guests for that puts Worcestershire in chili, I added a tad to the meat and it was pretty darn good like that. And since I'm rambling on here add a little tapioca starch slurry in the pan after you brown your meat and add that fat right in the pot. Adds a little body and a richer mouthfeel and it doesn't ever separate back out. ( also doesn't turn gravy into jello if you use too much lol)
As a mostly Cajun, onion celery bell pepper is in about 90% of things I cook.
This includes chili.